Tariffs Ruled Illegal, Then Hiked to 15%
What happened
The Supreme Court ruled earlier this year that Trump's emergency tariffs, imposed using the International Emergency Economic Powers Act (IEEPA), exceeded his statutory authority. Starting Monday April 21, businesses can file claims through a US Customs and Border Protection portal to reclaim overpaid duties, with disbursements expected in 60-90 days. But in the same week the refund portal opened, Trump raised a separate global tariff to 15% using Section 301 trade authority, and Treasury Secretary Scott Bessent told a Wall Street Journal event that the prior tariff levels could return by July once Section 301 investigations are complete.
The Supreme Court won the legal argument and lost the policy fight: the administration absorbed the ruling, pivoted to a different legal authority, and is on track to restore the same tariff levels within 90 days.
Prediction Markets
Prices as of 2026-04-20 — the analysis was written against these odds
The Hidden Bet
Section 301 authority is clearly legal where IEEPA was not
Section 301 has historically been used for targeted, country-specific actions with documented unfair trade practices. Applying it as a blanket global rate hike as a substitute for the struck-down IEEPA tariffs could face the same constitutional challenge, particularly if courts find the administration is using it as an end-run.
Businesses will actually collect their refunds
If Section 301 tariffs return to prior levels by July, the practical effect of the refund is a 90-day interest-free loan from the government. The money flows back and then flows out again in higher duties. The refund portal is procedurally real but economically ephemeral for most importers.
The administration wants lower tariffs
Bessent's comment about July restoration was not reluctant. The administration has consistently treated high tariffs as a goal rather than a negotiating tool. The Supreme Court ruling was a setback in legal theory, not a change in policy intent.
The Real Disagreement
The fork is between two ways to read the Supreme Court's ruling: as a genuine constraint on executive power that the administration must respect, or as a procedural obstacle that can be routed around using alternative legal authority that accomplishes the same economic result. The courts struck down IEEPA tariffs because Congress had not clearly authorized them for this purpose. If Section 301 gets challenged and courts find it was used as an intentional substitute, the same logic applies. But Section 301 has decades of precedent as a trade tool, so the administration is on stronger ground. The practical outcome is: the tariffs probably come back, and businesses that filed for refunds may end up paying them again.
What No One Is Saying
The refund portal's existence creates a politically convenient illusion that the rule of law worked. Businesses file for refunds, the press reports on the Supreme Court 'victory,' and meanwhile the replacement tariffs go back in at the same rate by July. The court didn't reduce tariffs. It changed which statute they're imposed under.
Who Pays
US importers, especially small and mid-size manufacturers
Immediate and ongoing
The 60-90 day refund window requires upfront documentation costs and legal fees. If tariffs return by July as Bessent projected, the net gain is minimal and the administrative burden is real.
US consumers
Already priced in from prior tariff levels; sustained at 15% going forward
A 15% blanket global tariff hits consumer goods prices across electronics, clothing, and household goods. The tariff incidence falls primarily on domestic buyers, not foreign exporters.
Trading partners, especially Southeast Asian manufacturers
Medium-term, as investigations conclude by July
Section 301 actions require evidence of specific unfair trade practices. But if the administration is running 301 investigations on 20+ countries simultaneously to replicate a blanket tariff, the evidentiary bar is likely being applied inconsistently.
Scenarios
Tariffs return by July as promised
Section 301 investigations conclude, tariffs go back to prior levels. Some importers who filed refund claims find the net effect near zero. Legal challenges to 301 tariffs are filed but courts are slower to rule than on IEEPA.
Signal Bessent or USTR announce the first Section 301 determinations by early June
Refund system gets overwhelmed or litigated
CBP portal handles claims at scale; disputes over documentation standards or eligibility generate a second wave of litigation. Disbursements are delayed past 90 days, creating cash flow problems for businesses that built inventory plans around refund timing.
Signal CBP extends the filing window or announces backlog delays before May 15
Section 301 tariffs also challenged successfully
Courts rule the Section 301 application was procedurally defective as a de facto IEEPA replacement. Administration is left without broad tariff authority, forced to negotiate individual country deals or seek congressional authorization.
Signal A federal circuit court issues a temporary injunction on 301 tariffs within 60 days, citing the IEEPA ruling's reasoning
What Would Change This
If a court issues a preliminary injunction on Section 301 tariffs with explicit language connecting them to the IEEPA ruling, the administration's legal path narrows significantly. Alternatively, if Congress acts to explicitly authorize broad tariff powers under a new statute, that would change the entire legal landscape. Markets currently give the tariff-return scenario the higher probability.
Related
Tariffs Struck Down, Tariffs Coming Back
powerThe $166 Billion Refund Nobody Can Actually Collect: The IEEPA Ruling's Unfinished Business
powerTrump Owes $159 Billion in Tariff Refunds. He Is Telling Companies Not to Collect.
powerThe Government Is Mailing $166 Billion Back to Importers. Consumers Who Paid the Tariffs Get Nothing.